In case you'd forgotten, WWDC 2013 kicks off this coming Monday, June 10 at the Moscone Center in San Francisco. WWDC is a developer conference by nature, but it's also now the only scheduled Apple keynote of the year. So, while we're all eagerly awaiting Tim Cook hitting the stage on Monday, what better time than to look back over some of the WWDC presentations of yesteryear.

We'll start with the first WWDC of the iPhone era, back in 2007. The keynote's main focus was Mac OS X 10.5 Leopard. Leopard was a big step forward in a number of ways from OS X 10.4 Tiger, with the keynote focusing on ten of the tentpole features. Leopard brought with it a redesigned dock and translucent menu bar, a new finder window incorporating the cover flow interface, stacks, Time Machine backups, Boot Camp and much, much more. Hundreds of new features in fact. Following the keynote, Leopard launched in late 2007, then selling for $129.

The 2007 keynote also dropped in a "one more thing," that wasn't for the Mac, or the iPhone, or any of Apple's products. At the event Apple launched Safari for Windows. The same Safari experience from the Mac, but for use on Microsoft's OS, with a beta launching that very same day.

Then came "one final thing." The 2007 keynote was just 18 days prior to the launch of the iPhone. Since WWDC is an event for developers, Apple wanted to tell them how they could be a part of the iPhone experience. This being before any App Store existed, it was all about web apps. And for some time it continued to be about web apps. How times have changed.

Kick back and enjoy the video, and let us know your favorite bits from WWDC 2007 in the comments below.